
the BOTH DIRECTIONS tab sign must be used with Rb-37 on all School Bus Routes located on four-lane undivided highways:
- With a singing strip (rumble strip) of 3 m or less; and
- Where posted speed is 70 km/h or greater.
Accessibility options
the BOTH DIRECTIONS tab sign must be used with Rb-37 on all School Bus Routes located on four-lane undivided highways:
- With a singing strip (rumble strip) of 3 m or less; and
- Where posted speed is 70 km/h or greater.